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Cylinders of compressed gases are often labeled to show how many "SCF" or "standard cubic feet" of gas they contain. 1 SCF of gas occupies a volume of 1 ft3 at a standard temperature and pressure of 0°C and 1 atm. A particular cylinder weighs 122 lbs when empty, and 155 lbs when filled with argon gas at 26°C. How many SCF of Ar does this cylinder contain?
how much energy is needed to heat 24.8g water from 64 degrees to 123 degrees celsius?
The first order reaction SO2CL2 yields SO2+ Cl2 is 10% complete in 80 min. How long would it take for the reaction to be 95% complete?
When combining with nometallic atoms, metallic atoms generally will... a) lose electrons and form negative ions b)lose electrons and form positive ions c) gain electrons and form negative ions d) gain electrons and form positive ions
Consider the controlled potential electrolysis of an Zn2+ solution using the following electrochemical cell set to -1.207 V: SSCE || Zn2+(aq)| Zn(s) 3.440 Coulombs of charge is collected in the electrolysis of a 50.00 ml solution.
For each metal complex, give the coordination number for the metal species. a. [M(CO)3F3 b. Na[Ag(CN)2] c. [Pt(en)Cl2]
what are the respective concentrations m of fe3 and i- afforded by dissolving 0.200 mol fei3 in water and diluting to
The reaction of Zn and Cu2+ produces a brown solid product. What is the identity of this product. Provide a balanced equation that shows the formation of this brown product
A pure titanium cube has an edge length of 2.68 . How many titanium atoms does it contain. Titanium has a density of 4.50 g/cm3
an unknown metal of density 7.65 gcm3 occurs in a face centered cubic unit cell. the radius of the atom is 126 pm. what
A hydrochloric acid solution is standardized using 0.500g of sodium carbonate, Na2CO3. Find the molarity of the acid if 29.50mL are required to reach a phenolphthalein endpoint.
100 million automobiles, each containing kg of CFC-12 (CF2Cl2). If each of them releases 25% of its CFC-12 into the atmosphere per year how much cl in kilograms is added to the atmosphere
If molar magnetic susceptibility (Xm) is measured in m^3/mol, what must be the units on B(calibration constant)? what are the units on the 3.7278 in the formula for the magnetic susceptibility of Mohr's salt? what are the units on the 8.07 in the ..
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